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Finding the Fourth Proportional to 9,963.51, 13,749.66 and 5,487.27

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Solution

The fourth proportional to 9,963.51, 13,749.66 and 5,487.27 is: 7,572.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,963.51 : 13,749.66 = 5,487.27 : x
  2. Step 2: Convert to fraction form
    9,963.51/13,749.66 = 5,487.27/x
  3. Step 3: Cross multiply
    9,963.51x = 13,749.66 × 5,487.27
  4. Step 4: Simplify right side
    9,963.51x = 75,448,096.83
  5. Step 5: Solve for x
    x = 75,448,096.83/9,963.51
  6. Step 6: Final answer
    x = 7,572.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.